MIB

A 1963/64 Outer Limits airing (in two parts) called The Inheritors presented Men In Black, who were not alien beings but government agents.
 
The not-viewed aliens were preparing humans – kids with various afflictions – for transport to a planet where they (the kids) would receive corrective care and a better life.
 
This is a trans-juxtaposition of how the MIB was being presented in UFO literature at the time, and going forward: the MIB are thought to be alien entities, with malevolent intent.
 
In the OL show, the MIB (government agents) acted with malevolent intent.
 
How did the MIB meme get turned on its head?
 
RR